code: def _test():
      dataset = RemoteDataset("mnist_train")
      print(len(dataset))
      img = dataset[0]
  
      plt.imshow(img[0][0], cmap="gray")
      plt.show()
  
file_path: labml/helpers/labml_helpers/datasets/remote/client.py
imports: import pickle
  import matplotlib.pyplot
  import urllib3
  from torch.utils.data import Dataset
label_desc: Use image node_id 1 for calling a global function with example usage: _test() without return types